Android Open Source - droidparts-battery-widget Battery Widget

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License

The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright (C) 2010 Sergej Shafarenka, beworx.com
 *//  w  w  w  . jav a2 s.  c o  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package at.linuxhacker.battery_widget;

import static android.content.Context.MODE_PRIVATE;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;
import android.view.View;
import android.widget.RemoteViews;


public class BatteryWidget {

  public static final String TAG = "droidparts-battery-widget";

  public static final String PREFS = "common";
  public static final String PREF_PACKAGE_NAME = "package";
  public static final String PREF_CLASS_NAME = "class";
  public static final String PREF_ACTIVITY_NAME = "name";
  public static final String PREF_DESIGN_TYPE = "design-type";

  public static final int DESIGN_COOL = 0;
  public static final int DESIGN_AWFUL = 1;
  public static final int DESIGN_AWFULLY_COOL = 2;
  public static final int DESIGN_DESIGN_COLORFULL = 3;

    private static final String MIME = "at.linuxhacker.battery_widget/widget";
  
  public static void updateWidgets(Context context, int chargeLevel, boolean chargerConnected) {

    SharedPreferences prefs = context.getSharedPreferences(PREFS, MODE_PRIVATE);
    int design = prefs.getInt(PREF_DESIGN_TYPE, DESIGN_AWFULLY_COOL);
    
    String level = chargeLevel < 10 ? "0" + chargeLevel : String.valueOf(chargeLevel);
    
    // create views
    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.battery_widget);
    
    // update level
    PendingIntent pendingIntent = getPendingIntent(context);
    views.setOnClickPendingIntent(R.id.battery, pendingIntent);
    views.setInt(R.id.battery, "setImageLevel", getIconLevel(chargeLevel, design));
    
    // update charge level
    if (isCapacityRightBottom(design)) { // right-bottom
      // hide center capacity
      views.setViewVisibility(R.id.capacity_center, View.GONE);
      // update visible capacity
      views.setTextViewText(R.id.capacity_right_bottom, level);
      views.setViewVisibility(R.id.capacity_right_bottom, chargeLevel < 100 ? View.VISIBLE : View.GONE);
    } else { // center
      // hide center capacity
      views.setViewVisibility(R.id.capacity_right_bottom, View.GONE);
      // update visible capacity
      views.setTextViewText(R.id.capacity_center, level);
      views.setViewVisibility(R.id.capacity_center, chargeLevel < 100 ? View.VISIBLE : View.GONE);
    }
    
    // update lightning visibility
    views.setViewVisibility(R.id.lightning, chargerConnected ? View.VISIBLE : View.GONE);
    
    // update widgets
    AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
    ComponentName componentName = new ComponentName(context, BatteryWidgetProvider.class);
    widgetManager.updateAppWidget(componentName, views);
    
    Log.d(TAG, "widgets updated");
  }

  private static PendingIntent getPendingIntent(Context context) {

    SharedPreferences prefs = context.getSharedPreferences(PREFS, MODE_PRIVATE);
    String name = prefs.getString(PREF_ACTIVITY_NAME, null);
    
    if (name == null) {
      Intent intent = new Intent(Intent.ACTION_VIEW);
      intent.setType(MIME);
      return PendingIntent.getActivity(context, 0, intent, 0);
    } else {
      String className = prefs.getString(PREF_CLASS_NAME, null);
      String packageName = prefs.getString(PREF_PACKAGE_NAME, null);
      Intent intent = new Intent();
      intent.setClassName(packageName, className);
      return PendingIntent.getActivity(context, 0, intent, 0);
      
    }
  }
  
  public static int getIconLevel(int chargeLevel, int design) {
    switch (design) {
      case DESIGN_COOL: return chargeLevel;
      case DESIGN_AWFUL:
      case DESIGN_AWFULLY_COOL: return 200 + chargeLevel;
      case DESIGN_DESIGN_COLORFULL: return 400 + chargeLevel;
      default: return chargeLevel;
    }
  }

  public static boolean isCapacityRightBottom(int design) {
    return design != DESIGN_AWFUL;
  }
}
Java Source Code List
